The 21st birthday I'll never forget.
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This is how it looks under your photo. Copy it, post it, enjoy the likes.
More 21st birthday captions
See all21 years of being awesome.
21st birthday squad.
21 years in the making.
Hello, twenty-one.
21 years old and still getting carded.
My 21st, my rules.
Twenty-one and full of plans.
Happy 21st to me! 🎂
21: officially grown, unofficially chaotic.
Twenty-one reasons to celebrate.
Grown up, sort of.
Birthday boy, 21 edition.
Now I'm 21. What's next?
Twenty-one and celebrating everything.
Legally an adult, emotionally still 12.